Video games have become increasingly more popular, but few focus on physical activity. VRabl, a multiplayer augmented reality sports game, stimulates players to be physically active, while providing similar aspects as video games. It is based on the well-known and popular game dodgeball to reach out to a large possible player community and have simple rules. The major goal of VRabl though is to make dodgeball more attractive and engaging for younger generations. The game relies on two Microsoft HoloLenses to enable a novel multiplayer augmented-reality sports game. A first evaluation shows that VRabl is enjoyable for people of every age group and stimulates physical activity, while having fun at the same time.